(1) yog vim li cas: tsis txhob muaj qhov kev txiav txim siab zoo tshaj plaws: xaiv qhov ntsuas siab tshaj plaws.
(2) yog vim li cas: spindle dabtsi yog khoov lossis lub thawv qhov tsis yog concentric. Txoj kev: kho qhov ntxeev lossis lub thawv.
(3) yog vim li cas: txoj siv tawv nruj: kho txoj siv kom qhov ceev nrooj tsim nyog.
(4) yog vim li cas: tsis zoo lubrication method: xaiv qhov kev qhia qib ntawm lubricating khoom thiab tu zoo.
(5) vim li cas: kev sib txig tsis tshua muaj kev sib haum xeeb: txhim kho kom zoo siab.
(6): plhaub khau: kev coj tus cwj pwm hloov ntawm cov laps thiab hnav cov khoom.
(7) axial quab yuam loj heev: txoj kev tu thiab kev kho kom zoo ntawm lub nplhaib sib khi yuav tsum tau ntawm 0.2 ~ 0.3 hli, kho qhov kab ntawm lub qhov sib npaug ntawm tus impeller thiab tshawb xyuas qhov seem tshuav zoo li qub.
(8) kev coj ua kev puas tsuaj: hloov cov bearings.